On January 18, 1778, the English explorer Captain James Cook becomes the first European to travel to the Hawaiian Islands when he sails past the island of Oahu. Two days later, he landed at Waimea on the island of Kauai and named the island group the Sandwich Islands, in honor of John Montague, who was the earl of Sandwich and one his patrons.

During the Revolutionary War, representatives from the United States and France sign the Treaty of Amity and Commerce and the Treaty of Alliance in Paris.

On February 11, 1778, some 300 people visit Voltaire following his return to Paris. Voltaire had been in exile for 28 years.

On February 13, 1778, two future presidents of the United States, John Adams and his son, 10-year-old John Quincy Adams, sit in Marblehead Harbor, off the coast of Massachusetts, on board the frigate, Boston, which is to take them to France, where John Adams will replace Silas Deane in Congress’ commission to negotiate a treaty of alliance.

Friedrich Wilhelm Rudolf Gerhard August, Freiherr von Steuben, a Prussian military officer, arrives at General George Washington’s encampment at Valley Forge on February 23, 1778 and commences training soldiers in close-order drill, instilling new confidence and discipline in the demoralized Continental Army.

Benjamin Franklin, Silas Deane and Arthur Lee present themselves to France’s King Louis XVI as official representatives of the United States on March 20, 1778. Louis XVI was skeptical of the fledgling republic, but his dislike of the British eventually overcame these concerns and France officially recognized the United States in February 1778.

On March 21, 1778, just three days after British Loyalists and Hessian mercenary forces assault the local New Jersey militia at Quinton’s Bridge, three miles from Salem, New Jersey, the same contingent surprises the colonial militia at Hancock’s Bridge, five miles from Salem.

At 3 a.m. on April 23, 1778, Commander John Paul Jones leads a small detachment of two boats from his ship, the USS Ranger, to raid the shallow port at Whitehaven, England, where, by his own account, 400 British merchant ships are anchored. Jones was hoping to reach the port at midnight when ebb tide would leave the ships at their most vulnerable.

On June 18, 1778, after almost nine months of occupation, 15,000 British troops under General Sir Henry Clinton evacuate Philadelphia, the former U.S. capital.

On November 11, 1778, Patriot Colonel Ichabod Alden refuses to believe intelligence about an approaching hostile force. As a result, a combined force of Loyalists and Native Americans, attacking in the snow, killed more than 40 Patriots, including Alden, and took at least an additional 70 prisoners, in what is known today as the Cherry Valley Massacre. The attack took place east of Cooperstown, New York, in what is now Otsego County.

On December 10, 1778, John Jay, the former chief justice of the New York Supreme Court, is elected president of the Continental Congress. Jay, who graduated from King’s College (now Columbia University) at the age of 19, was a prominent figure in New York state politics from an early age. While Jay opposed British interference in the colonies, he was against complete independence from Great Britain.

On December 29, 1778, British Lieutenant Colonel Archibald Campbell and his force of between 2,500 and 3,600 troops, which included the 71st Highland regiment, New York Loyalists, and Hessian mercenaries, launch a surprise attack on American forces defending Savannah, Georgia.